The charging method of electric furnace smelting should include the recarburizer manufacturer with scrap steel and other charge in it, and small doses can be added to the surface of the molten iron. However, it is necessary to avoid large batches of materials into the molten iron to prevent excessive oxidation and the occurrence of insignificant recarburization effects and insufficient carbon content of the castings. The amount of recarburizer added is determined according to the ratio of other raw materials and the carbon content. Different types of cast iron recarburizer manufacturers choose different types of recarburizers according to their needs. The characteristics of the recarburizer itself choose pure carbon-containing graphitized substances to reduce excessive impurities in the pig iron, and the appropriate selection of the recarburizer can reduce the production cost of castings. High temperature asphalt

In the smelting process, the content of steel or iron cannot meet the expected requirements due to improper ingredients and excessive decarburization. Carbon should be added to the steel or iron solution. The main substances used to increase carbon are anthracite powder, carbonized pig iron, electrode powder, petroleum coke powder, pitch powder, charcoal powder and coke powder. The requirement of the recarburizer is that the higher the fixed carbon content, the lower the content of harmful impurities such as ash, volatile matter and sulfur, the better, so as to avoid polluting the molten iron. However, there are still some people who don't know much about recarburizers, which has affected the development of recarburizers. In order to break this state, our company will summarize the knowledge of carbonizing agents over the years, and give you a brief talk about the selection and use of carbonizing agents. Recarburizer: A product of black or gray particles that is added to a metal smelting furnace to increase the carbon content in the molten iron. On the one hand, it can reduce the oxygen content in molten iron; on the other hand, it is more important to improve the mechanical properties of molten metal or castings. The fixed carbon value is calculated based on the moisture, volatile content, ash and sulfur content of the sample, and the carbon content can be obtained by a direct carbon meter. Some recarburizers have high ash content and large carbon content, but their fixed carbon content is not ideal. There are also some foundry workers who judge whether the fixed recarburizer is qualified unilaterally from the carbon content of the fixed recarburizer and its material properties. The result may be biased, making the choice of recarburizer unworthy.

The use of recarburizers can not only make up for the carbon loss in the steel smelting process, and ensure the specific carbon content grade requirements of the steel, but also can be used for post-furnace adjustment. The recarburizer is an important raw material for the molten iron in the induction furnace, and its quality and usage directly affect the state of the molten iron. The carbon content of the ladle can be adjusted by adding a special grade of recarburizer to the ladle after slagging and degassing, so as to achieve the purpose of multi-standard packaging. Common electrode blocks and recarburizers have the advantages of high carbon content and strong oxidation resistance, but the production process is complicated and the cost is high. Using coke powder and graphite as recarburization materials has lower production costs than electrode blocks and other materials, but the ash and sulfur content is high, the carbon content is low, and the recarburization effect is not good.